Netgear A7000 Wifi Driver - How To Install?

[kali-]

I am somewhat new to Linux but have been able to get around using UBUNTU. I decided to more on to Kali. I am trying to use my wireless usb adapter Netgear A7000. I am trying to install the driver. I believe the following commands will get me there:
sudo apt-get update
sudo apt-get install git dkms
git clone https://github.com/zebulon2/rtl8814au.git
sudo dkms add ./rtl8814au
sudo dkms build -m rtl8814au -v 4.3.21
sudo dkms install -m rtl8814au -v 4.3.21

The problem is when I enter the second line into the terminal window, I get the following error:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package dkms

Any ideas why I cannot locate the package dkms?

Thanks for any help.